Maui iOS app with defined UISceneConfigurations crashes on force-close with error "System.InvalidOperationException: Window was already destroyed"

[BenDTU]

Description

A Maui app that is using defined 'UISceneConfigurations' will crash with the error "System.InvalidOperationException: Window was already destroyed" when it is force-closed from the app-switcher. This occurs when running locally and is also reported as a crash in TestFlight.

Steps to Reproduce

1. Create a new MAUI app
2. Add a "UIApplicationSceneManifest" section in Info.Plist with a basic 'UIWindowSceneSessionRoleApplication' using '__MAUI_DEFAULT_SCENE_CONFIGURATION__'
3. Add an matching empty MauiUISceneDelegate
4. Run the app in the simulator
5. Double tap the home button and swipe up the app to close, and it will report a crash in the IDE

Link to public reproduction project repository

https://github.com/BenDTU/MauiUISceneConfigurationCrash

Version with bug

8.0.80 SR8

Is this a regression from previous behavior?

Yes - this crash does not occur on the latest .NET 7 Maui release

Last version that worked well

7.0.101

Affected platforms

iOS

Affected platform versions

Tested on latest iOS

Did you find any workaround?

No - I am unsure what I could do differently, this setup was used from a Maui CarPlay tutorial, but is reproducible without the CarPlay specific code

Relevant log output

No response

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[RoiChen001]

I can repro this issue at iOS platform on the latest 17.11.0 Preview 7.0 (8.0.80 & 8.0.0-rc.1.9171), but not repro at .NET 7.

[PureWeen]

@BenDTU looking at your sample it looks like you are just setting the MainPage

In order to do multi window you'll need to override createwindow to handle the multiple pages https://learn.microsoft.com/en-us/dotnet/maui/fundamentals/windows?view=net-maui-8.0#create-a-window

[BenDTU]

@BenDTU looking at your sample it looks like you are just setting the MainPage

In order to do multi window you'll need to override createwindow to handle the multiple pages https://learn.microsoft.com/en-us/dotnet/maui/fundamentals/windows?view=net-maui-8.0#create-a-window

Overriding CreateWindow as the example there didn't seem to make any difference, the same crash occurs on closing the app.